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Artificial reef
An artificial reef is a man-made, underwater structure, typically built for the purpose of promoting marine life in areas of generally featureless bottom. Artificial reefs may also serve to improve ... > more -
Common Seal
The Harbor Seal or Common seal (Phoca vitulina) is a true seal of the Northern Hemisphere. Having the widest range of all pinnipeds, Harbor seals are found in coastal waters of the northern Atlantic ... > more -
Pufferfish
The puffer fish, also called blowfish, swellfish, globefish, balloonfish, bubblefish are fish making up the family Tetraodontidae, within the order Tetraodontiformes. They are named for their ability ... > more -
Bioluminescence
Bioluminescence is the production and emission of light by a living organism as the result of a chemical reaction during which chemical energy is converted to light energy. Bioluminescence may be ... > more -
Egg (biology)
In most birds and reptiles, an egg is the zygote, resulting from fertilization of the ovum. It nourishes and protects the embryo. Oviparous animals are animals that lay eggs, with little or no other ... > more -
Exoskeleton
An exoskeleton, in contrast to an endoskeleton, is an external anatomical feature that supports and protects an animal's body. All arthropods (such as insects, spiders and crustaceans) and many other ... > more
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